Anyone done a DIY Immobiliser?

Hi,

Am keen to speak to anyone who has done their own "hidden switch" to imobilise their TD Hilux.

I was thinking that a push button switch that you hold down at the same time as cranking the engine would be the way to go. Although ive read in the archive about Immobilising the fuel pump. Each has their pro's and con's no doubt.

Has anyone done either to the TD hilux and would be keen to share their knowledge?

Im fine with the electricals, just not with the mechanics of where to tap into the fuel pump etc. And I dont want to buy a super complex alarm which knowing murphy's law will break down when im a zillion miles from the nearest soldering iron.

Cheers,

Glenn.